Only after my friend came _____.
| A．did the computer repair |
| B．he repaired the computer |
| C．was the computer repaired |
| D．the computer was repaired |
It will be years _______ all children can go to school free of charge at all
| A．since | B．after | C．as | D．Before |
Lily often watches TV, so ________．
A．does she B doesn’t she C．I do D．do I
The boys,________had played the whole day long, were tired．
| A．all of what | B．all of which |
| C．all of them | D．all of whom |
Yuan Long ping is ______ university professor．He likes playing _____ violin．
| A．a; the | B．an; / |
| C．a ; a | D．an; a |
―People should stop using their cars and start using public transport.
―______. The roads are too crowded as it is.
| A．All right | B．Exactly |
| C．Go ahead | D．Fine |